Question

Can you recall?
1. What is a unit?
2. Which units have you used in the laboratory for measuring
(i) length (ii) mass (iii) time (iv) temperature?
3. Which system of units have you used?​

Answer 1

1 is right thank you for question I hope it helps you

Answer 2

Answer:

1.A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement. For example, a length is a physical quantity.

2.The units that are used to measure length in a laboratory, if measured in a measuring scale, then the units are millimeter, centimeter, meter, inch and foot.

3.We usually use matric system.

Explanation:

Mark as brainiest

$\ Shanaya$